Locking mechanism.



C. E. G. EDEY.

LOCKING MECHANISM.

APPLICATION TILED JUNE 13, 1910.

1 ,O49,828. Patented Jan. 7,1913.

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COLUMBIA PLANmkAI-H CO.,'WASHINGTON, D c.

C.E.G.BDEY.

LOCKING MECHANISM. APELIGATION FILED JUNE 13,' 1910.

1,049,828, Patented Jan. 7, 1913.

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G.E.C.EDBY.

LOOKING MECHANISM.

APPLICATION FILED JUNE 13, 1910.

1,049,828. Patented Jan. 7,1913.

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f ZZ/D UNITED STATES PATENT OFFICE.

CHARLES E. c. EDEY. or TACOMA, WASHINGTON.

LOCKING MECHANISM.

Specification of Letterslatent.

ratentea'aan. 7.1913.

Application filed June 13, 1910. Serial No. 566,642.

and combination of locking means which,

will permit the look proper to be removed bodily without the removal ofthe knob or an auxiliary locking member.

Another object of the invention is the arrangement in a lock, of alocking device formed with an operating member extending slightlytherefrom, for engaging a knob arrangement having operating levers foroperating the belt or latch when the lock is in position, but permittinga free'removal of the lock proper independent of the knob construction.1

A still further object of the invention is the arrangement in a lock, ofa reciprocating latch member arranged to be moved in one direction forengaging the knob shaft for preventing the rotation of the knob andmoved in the opposite direction for releasing the knob shaft andpermitting the free rotation thereof for actuating the bolt of the lock.

With these and other objects in view the invention comprises certainnovel constructions, combinations and arrangement of parts as will behereinafter more fully described and claimed.

In the accompanying drawings: Figure 1 is a vertical sectional viewthrough a door and lock showing one embodiment of the invention. Fig. 2is a sectional view through Fig. 1, approximately on line 22.

Fig. 3 is a detail perspective view of the knob shaft. Fig. 4 is a frontview of the knob shaft locking device. Fig. 5 is an operating memberfor'operating the device shown in Fig. 4. Fig. 6 is a perspective viewof the lock arranged with the knob andfsurrounding parts applied to adoor with the locking device proper shown removed. Fig. 7 is afragmentary sectional view similar to Fig. 2, showing the lookingtumbler partially moved. Fig. 8is a view similar to Fig. 7, showing thelocking tumbler moved to its'forward position. Fig. 9 is a perspectiveview of the locking tumbler. Fig. 10 is aperspective view of the basetumbler. Fig. 11 is an enlarged perspective view of the bolt.

P In constructing a lock embodying the i11- vention the same is arrangedwith a looking mechanism properarranged to be applied and removed from adoor without interfering with the co-acting knob shaft which is used foroperating the locking mechanism proper. nism proper is also designed tobe removed without interfering with one or more look ing membersdesigned to be operated by suitable keys. In arranging theknobs and knobshafts the outside knob is associated with a sliding locking bar whichis operated by a lever mechanism from the inside of the door for lockingthe knob shaft connected to the outside knob against rotation or forpermitting a free rotation thereof according to the position of thesliding- When the knob shaft connected member.

The locking mechato the outside knob is locked against rotation thelocking mechanism proper cannot be operated by the outside knob but maybe freely operated by the auxiliary lock associated with the lockingmechanism proper.

In order that the invention may be more clearly understood an embodimentof the same is shown in the accompanying drawings, in which 1 indicatesa door of any desired kind in which is, fitted a mortise lock 2 arrangedwith a reciprocating bolt 3. The

bolt 3 is controlled by locking mechanism 4; which has projectingtherefrom an extension 5 for being operated by the auxiliary lock 6. Thelocking mechanism 4 may be also operated by a lever 5 which is pivotallymounted at 6' and has an arm or extension 7 designed to be operated by apivotally mountedlever 8. Lever 8 is arranged to be engaged by cammembers 9 and 10 arranged on partsll and 12 of the knob shaftwhichcarries knobs 13 and 14, knob 14 being an outer knob and designedto be locked against movement by a reciprocating locking member 15whenever it is desired to lockthe door against being opened from theoutside. However, whenever it is desired to withdraw bolt 3 from theoutside and knob 14 is locked against rotation a key 16 may be fittedinto lock 6 and operate for rotating cam 17 which cam engages lug orextension 5 for withdrawing bolt 3. A look, similar to lock 6, may befitted to operate from the inside of the door if desired.

It will be noted that the entire lock 6 is arranged outside of thelocking memberor mechanism 2 but cam 17 may freely pass through a slot13 in the housing of the locking member 2 for freely engaging eX-tension 5. This will permit a free operation of the bolt 3 by the lock 6but will not prevent the removal of the locking mechanism 2.

Bolt 3 is arranged in housing 2 and projects through a face plate 3. Theface plate 3 acts as a guide for permitting the proper reciprocation ofthe bolt in the usual manner. Bolt 3 is formed with cut out portions 30and 31, and a longitudinal slot 32. The slot 32 accommodates a guidingand locking pin 32, which is rigidly secured to housing 2. Mounted incut out portion 31 is a base tumbler 33 which is utilized for moving thebolt 3 when the same is used as a latch. Mounted in cut out portion 30is a locking tumbler 34 which is designed to be operated by auxiliarylock 6. Base tumbler 33 is an oblong structure, and has arranged thereina slot 35 for accommodating locking pin 32. The tumbler 33 is formedwith turned over ends 36 and 37, end 37 being divided or bifurcated forforming an opening or slot 38 for accommodating pin 39. Slot 35 islonger than slot 32, and when the tumbler 33 is resting against pin 32slot 32 overlaps slot 35 until slot 32 almost comes opposite turned overportion 36 of tumbler 33. These slots are arranged in this manner inorder to permit an extra outward movement of bolt 3 for locking thesame. Tumbler 33 is also formed with notches 40 and 41 havingtherebetween a lug 42. These notches are designed to accommodate aturned over lug or stop 4 on tumbler 34. Tumbler 33 is mounted on oneside of bolt 3, and tumbler 34 on the opposite side, tumbler 34 beingpositioned in out out portion 30 and pivotally mounted on pin 39.Tumbler 34 is used for throwing bolt 3 to its outer or locked position,and is therefore formed with the extension 5 for being engaged by thecam 17. Tumbler 34 is also formed with a slot or notched out portion 44into which extends a lug 45, and which is designed to accommodate pin32. A spring 46 is provided for tumbler 34, and engages the same in aslot 47 for normally holding the upper edge of notched out portion 44against pin 32. The notched out portion 44 is made sufiiciently largefor permitting a suflicient pivotal movement for allowing member orextension 5 to raise tumbler 34 upward and force the same over pin 32'when bolt 3 is being forced to its outer or locked position. Themovement of extension 5 when looking bolt 3 will first be such as topivotally raise tumbler 34, then move the same longitudinally, togetherwith bolt 3, and finally permit lug 45 to drop in front of pin or lug32. Vhen in this position the bolt is in its locked or extreme outerposition, and cannot be withdrawn except by the operation of the key andcam 17. When it is desired to operate bolt 3 as an ordinary latch thesame is moved by lever 5, which engages turned over end 36 of tumbler33. Lever 5 can only be moved when the lug 45 of tumbler 34 has beenmoved to a position back of pin or lug 32 by means of cam 17. Lever 5has a projection 7 against which lever 8 presses, and which whendepressed moves lever 5 rearwardly, and consequently pulls upon tumbler33, which conveys power to tumbler 34 through turned over portion 4.From tumbler 34 power is conveyed through pin 39 to bolt 3, whereby thebolt is withdrawn and moved inward. Upon the releasing of member 7 thespring will automatically throw the bolt'3 to its outer position in theusual manner. By this construction and arrangement the bolt 3 may beoperated freely as a latch for the knobs, and may be locked againstoperation from the outside by the sliding member 15. Also the auxiliarylock affords means for positively locking the bolt or moving the bolt tosuch a position that the same can not be withdrawn by the knobs underany circumstance, the auxiliary locking member and the knob mechanismbeing arranged independent of the locking mechanism 2 so as to permitthe free withdrawal of the looking mechanism 2 whenever desired.

A pair of escutcheons 19 and 20 are provided through which extend thelocking shaft and the lock 6. These are held in place by suitableclamping members 21 and 22 which have smooth heads for the outside ofthe door and kerfed heads for the inside of the door, and comprise athreaded sleeve and a threaded screw fitting into the sleeve for firmlyclamping and holding in position the escutcheons.

Arranged within escutcheon 19 is a plate 23 used for assisting insupporting part 12 of the knob shaft, and also assisting in guiding thereciprocating locking member 15 which fits partially into a notch 24formed in door 1.

The reciprocating locking member 15 (Figs. 1 and 4) is moved by a leveror key member 25 which passes through door 1 and escutcheon 20 and hassecured thereto an operating thumb member 26. When member 25 is turnedin one direction the squared notch 26 is raised above part 12 of theknob shaft so as to permit a free rotation of the knob shaft. Whenmember 25 is turned in the opposite direction the sliding member 15 isforced downward until portion 12 of the knob shaft is located in I vl ,this construction and arrangement it will the lock 6.

notch 26 which will eifectually prevent any rotation of knob 14:, andconsequently any operation of bolt 3 from the outside by the knob.Portions 11 and 12 of the knob shaft 7 are pivotally connected togetherby portion 11 having a threaded extension 27 fitting into a threadedaperture 28 of portion 12.

This will permit a free pivotal movement of both parts of the knobshaft, but will hold the knob shaft in alinement and the cams 9 and 10in proper position for operating lever 8. In order to cause a properreciprocatory movement of member 15 a slot 29 is formed. therein throughwhich member 22 passes for properlyguiding the reciprocating member 1nits movement. By be. observed that after the entire lock has been placedin position the locking mechanism 201 locking device proper may beremoved,

bodily without interfering with the es cutcheons, knobs and associatedparts and What I claimis: V Alock and latch comprising in combina tion,a casing, a retractil'e bolt slidable therein, said bolt being recessedand having a longitudinal slot formed. therein, a lug carried by thecasing and passing through the slotted portion of said bolt, a tumblerpivoted to said bolt and having an offset from the upper edge thereof, arecessed portion to receive the lug extending from the casing and a lugformed by the recessed portion to engage the lug carried by the casing,and a further lug extending from the lower edge of said tumbler, aslidable member between said bolt and easing hav ing an elongated recessformed therein to receive the lug carried by the casing, said slidablemember being notched along its upper edge, a cam face formed by one ofsaid notches, the ends of said slidable member being bent from the planeof the major portion, the offset portion from the upper edge of thetumbler engaging one or another of the notches formed in the slidablemember in certain positions thereof, means carried by said casing havinga portion thereof extending behind the slidable member and against oneof the bent ends therethe same, and further means independent of thecasing for actuating the means within the casing for sliding saidslidable member which through the tumbler slides the bolt- In testimonywhereof I aflix my signature in presence of two witnesses.

CHARLES E. C. EDEY. Witnesses: I 7 THOMAS MATTISON,

G. Down MoQnnsTEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

